133441111 has 2 divisors, whose sum is σ = 133441112. Its totient is φ = 133441110.

The previous prime is 133441103. The next prime is 133441117. The reversal of 133441111 is 111144331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133441111 - 2³ = 133441103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133441117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66720555 + 66720556.

It is an arithmetic number, because the mean of its divisors is an integer number (66720556).

Almost surely, 2^133441111 is an apocalyptic number.

133441111 is a deficient number, since it is larger than the sum of its proper divisors (1).

133441111 is an equidigital number, since it uses as much as digits as its factorization.

133441111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 19.

The square root of 133441111 is about 11551.6713509345. The cubic root of 133441111 is about 511.0105695938.

Adding to 133441111 its reverse (111144331), we get a palindrome (244585442).

The spelling of 133441111 in words is "one hundred thirty-three million, four hundred forty-one thousand, one hundred eleven".